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Nervous Structure and Function Review Quiz/Living Environment Multiple Choice SectionChoose the response which best completes the following statements or answers the following questions.1.? A portion of a nervous system is illustrated in the diagram. Structure X represents? (1.) an effector?(2.) a neuron? (3.) a red blood cell? (4.) a white blood cell2.??? Which part of the human central nervous system is correctly paired with its function?? (1.) spinal cord - coordinates learning activities? (2.) cerebrum - serves as the center for memory and reasoning? (3.)? medulla - maintains muscular coordination? (4.) cerebellum -- serves as the center for reflex actions3.??? In the human nervous system, synapses are located directly between? (1.) dendrites and dendrites? (2.) cell body and axons? (3.) terminal branches and dendrites?(4.) axons and terminal branches4.?? The portion of the brain directly involved with coordinating voluntary motion or voluntary motor responses is the (1.) cerebrum? (2.) cerebellum? (3.) spinal cord? (4.) medulla5.??? When a child runs to his mother after hearing a clap of thunder, the clap of thunder would serve the nervous system role of acting as a(n) (1.) stimulus? (2.) response? (3.) effector? (4.) none of these6. A change in the external or internal environment of an organism is known as? 1. response 2. an impulse 3. a synapse 4. a stimulus7. Adding one drop of dilute hydrochloric acid to the water surrounding a hydra caused the hydra to contract. The acid acted as?? 1. a response 2. a stimulus 3. a neurotransmitter 4. an impulse8.? Which statement describes a relationship between the human cells illustrated in the diagrams?? (1.) B may cause D to contract.? (2.) B is used to repair C.? (3.) C transports oxygen to A.? (4.) A is produced by D.9.? The diagram represents a neuron. Which number indicates the area where a stimulus is detected and an electrochemical impulse is conducted to the cell body?? (1.) 1? (2.) 2? (3.) 3? (4.) 4 10.?? A change that initiates an electrochemical message along a neuron is known as? (1.) a stimulus? (2.) a response? (3.) an impulse? (4.) a synapse 923925164655511. Which is an activity controlled primarily by the cerebellum? (1.) maintaining balance (2.) breathing (3.) regulating your heartbeat (4.) thinking during this worksheet 12.? Which substances are secreted at the endings of nerve cells?? 1.? antibodies?? 2.? antigens?? 3.? neurotransmitters?? 4.? lipids13.? The diagram below represents the functional unit of a nervous system. Which letter indicates a structure that secretes a neurotransmitter? 1. A 2. B 3. C 4. D 14.? To communicate between cells, many multicellular animals use: 1. nerve signals and respiratory gases? 2. respiratory gases and hormones 3. bones and muscles? 4. nerve signals and hormones15.? One similarity between cell receptors (on dendrites) and antibodies is that both1. are produced by nerve cells????2. are highly specific in their actions 3. slow the rates of chemical reactions??? 4. are involved in digestion16.? Hormones and secretions of the nervous system are chemical messengers that1. store genetic information??? 2. carry out the circulation of materials 3. extract energy from nutrients??? 4. coordinate system interactions Base your answers to the questions 17 and 18 on the diagram below and your knowledge of biology.17.? Which statement best describes the diagram??? 23145751233805(1.) Nerve cell X is releasing receptor molecules(on dendrites). (2.) Nerve cell Y is signaling nerve cell X.?? (3.) Nerve cell X is attaching to nerve cell Y. (4.) Nerve cell Y contains receptor molecules(on dendrites) for substance A.18.? A drug is developed that, due to its molecular shape, blocks the action of substance A. ?????? Which shape would the drug molecule most likely resemble? 19.? A process that occurs in the human body is represented in the diagram.Which statement is most closely associated with the diagram?? 1. Small molecules are obtained from large molecules during digestion. 2. Certain molecules are replicated by means of a template. 3. Receptor molecules(on dendrites) play an important role in communication between cells. 4. Energy from nutrients is utilized for waste disposal.20.The body’s left side is controlled by the cerebrum’s 1) Left side2) Right Side3) Both Left and Right Sides4) Front half21. Chemicals involved in moving nerve impulses across a synapse are called __________.1.) neuroexciters2) neurotransmitters3) receptor molecules4) neuroinhibitorsCorrectly complete the following statements.? 1.? Most axons are covered with a(n) ____________________ which aids impulse? transmission by improving electrical insulation. 2.? The gap between two adjacent neurons is called a(n) _______________. 3.? Nerve impulses are basically ________________ in nature. 4.? The longest dendrite of a neuron which carries the impulse from the cell body is called the _______________. 5.? The nucleus and cell organelles of a neuron are located in the _______________. 6.? The part of a nerve cell or neuron which releases neurotransmitters are its _______________. 7.? The branches of nerve cells are known as _______________. 8.? The portion of the brain which controls involuntary activities such as blood pressure and breathing is the _______________. 9.? A muscle or gland which responds to a message carried to it by motor neurons is called a(n) _______________. 10. The portion of the brain which controls the thought processes is the _______________.11. A change in the surroundings or the environment that triggers a nerve impulse is called a(n) _______________. 12. The portion of the brain which coordinates motor activities is the _______________.Short Answer SectionIdentify each of the numbered structures on the neuron diagram at the right.What are the steps of a reflex arc?Multiple Choice Section1.)? 28.)? 115.) 22.)? 29.)? 116.) 43.)? 310.) 117.) 44.)? 211.) 118.) 25.)? 112.) 319.) 36.)? 413.) 420.) 27.)? 214.) 421.) 2 Completion Questions 1.) myelin sheath2.) synapse 3.) electrochemical 4.) axon 5.) cell body 6.) terminal buttons 7.) dendrites 8.) medulla 9.) effector 10.) cerebrum? 11.) stimulus 12.) cerebellum Neuron Diagram 1.??? dendrite 2.??? Cell body 3.??? axon 4.??? Terminal buttons Reflex arcSensory receptorSensory Neuron Interneuron (in spinal cord and brain) Motor neuron Effector ................
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